CN113858701B - Double-sided bag mouth perforating machine - Google Patents

Abstract

The application relates to a bilateral bag opening puncher, which relates to the field of packaging bag processing devices and comprises a frame, wherein the frame is provided with two groups of punching devices, the two groups of punching devices are respectively distributed along the vertical direction or the horizontal direction, each punching device comprises at least one punching mechanism for punching, each punching mechanism comprises a telescopic piece and a punching piece for punching, the telescopic ends of the telescopic pieces of the two punching devices are oppositely arranged, each punching piece is arranged at the telescopic end of the telescopic piece, and a supporting component for supporting the edge of a bag opening of a packaging bag during punching is arranged between the two punching devices. The application can punch the edges of two openings of the packaging bag relatively conveniently.

Description

Double-sided bag mouth perforating machine

Technical Field

The application relates to the field of packaging bag processing devices, in particular to a double-sided bag opening puncher.

Background

The packaging bag is commonly used for packaging products in the selling or transporting process, is widely used in daily life and industrial production, and is mainly divided into a plastic packaging bag, a composite packaging bag, a paper packaging bag and the like. In the production of wrapping bag, need set up two mounting holes respectively at two long edges of wrapping bag sack to be used for wearing to establish the lifting rope, be convenient for transport.

In order to facilitate punching the mouth of the packaging bag during production, chinese patent publication No. CN102700166A discloses an automatic punching machine for plastic bags, which has the technical key points that: the device comprises a top plate, an air cylinder, a connecting plate, a pressing plate, two guide posts and an underframe; the two guide posts penetrate through the top plate and are connected with the top plate in a sliding manner, and the bottom ends of the two guide posts are respectively connected with the upper part of the connecting plate; the cylinder is fixed in roof bottom, and the piston rod of cylinder is fixedly connected with connecting plate upper portion, and the connecting plate lower part fixedly connected with heating device, heating device lower part connection have the pressure needle, and the pressure needle runs through in the clamp plate, and the both ends of connecting plate are through connecting rod and clamp plate floating connection.

Aiming at the related art, the inventor considers that in the punching process of the packaging bag, at least one mounting hole is required to be arranged on two long edges of the packaging bag, and if the mounting holes are formed on two bag opening edges of the packaging bag at one time, the two edges of the bag opening of the packaging bag are easy to adhere together after the holes are formed, so that the product quality is affected; if the mounting holes are formed at two bag openings of the packaging bag respectively, the positions of the packaging bag are changed after the mounting holes are formed at one side edge of the bag opening of the packaging bag, and the mounting holes are formed at the other side edge of the packaging bag, so that the packaging bag is relatively inconvenient in production.

Disclosure of Invention

In order to enable the edge of the bag mouth of the packaging bag to be perforated relatively conveniently and simultaneously, the application provides a double-side bag mouth perforating machine.

The application provides a bilateral bag mouth perforating machine, which adopts the following technical scheme:

the utility model provides a bilateral sack puncher, includes the frame, the frame is provided with two sets of perforating device, two sets of perforating device distributes along vertical or horizontal direction respectively and sets up, perforating device includes at least one perforating mechanism that is used for punching, perforating mechanism includes the extensible member and is used for the perforating piece of punching, two the flexible end of the extensible member of perforating device sets up relatively, the perforating piece sets up in the flexible end of extensible member, two be provided with the supporting component who supports is used for punching the sack border of wrapping bag when perforating between the perforating device.

Through adopting above-mentioned technical scheme, when producing, only need make the sack of wrapping bag prop up and do the support through supporting component, then make the expansion piece of two perforating device drive the piece that punches to stretch out and draw back in opposite directions, so as to punch to the sack of wrapping bag simultaneously, set up different quantity punching mechanism according to the needs of punching the quantity simultaneously, thereby can punch to the sack border of wrapping bag respectively simultaneously, in addition, when punching still can pass through supporting component's support, when reducing two perforating device punches, two sack borders of wrapping bag produce the possibility of interference, optimize the quality at mounting hole border after the completion of punching.

Optionally, the perforating piece is needle-shaped or tubular.

Through adopting above-mentioned technical scheme, can be when the extensible member stretches out and draws back, perforating piece can be at the sack border shaping mounting hole of wrapping bag.

Optionally, the supporting component includes at least one backup pad that is used for the cooperation wrapping bag sack, the backup pad sets up in the fixed part of frame or extensible member, just the supporting part of backup pad wears to locate between two perforating device.

Through adopting above-mentioned technical scheme, the backup pad can be when punching, with the sack border of wrapping bag open to when reducing punching the mutual possibility that produces of sack border of wrapping bag and interfere, can also reduce when punching the sack of wrapping bag and take place deformation influence the possibility of punching.

Optionally, at least one side in the top and the below of backup pad is provided with the pressfitting board that is used for pressing the sack of wrapping bag in the backup pad, the pressfitting board is connected in the fixed part of frame or extensible member.

Through adopting above-mentioned technical scheme, the pressboard can be when punching, with the sack border pressfitting of wrapping bag in the backup pad to when reducing punching, the sack border of wrapping bag is towards the direction deformation or the possibility of buckling of keeping away from the backup pad, thereby reduce the influence to the punching position accuracy because of the sack border of wrapping bag buckles or deforms.

Optionally, the lateral part of the laminated plate is provided with an avoidance port for avoiding the telescopic end of the telescopic member.

Through adopting above-mentioned technical scheme, dodge the mouth and can dodge the flexible end of telescopic member in, still can also be through dodging the opening border of mouth and do the support to the sack border of wrapping bag to increase the area that supports wrapping bag sack border, thereby stability when further optimizing the use reduces because of the influence of two-way punching to the punching site precision simultaneously.

Optionally, the frame is provided with a guide assembly for guiding the packaging bag, the guide assembly comprises at least one guide plate, and the guide plate is arranged on the frame.

Through adopting above-mentioned technical scheme, the guide plate can be when punching, carries out the guide to the guide plate to the position at support assembly place is led to the wrapping bag in the convenience.

Optionally, the telescopic member is provided with a replacement mechanism for replacing the punching members with different specifications.

Through adopting above-mentioned technical scheme, can change the perforating piece of different specifications through change mechanism to adapt to the required mounting hole aperture of the sack of different specification wrapping bag.

Optionally, change the mechanism and including changing the subassembly, change the subassembly and including being annular elasticity chain belt and being used for making the support piece that supports to the elasticity chain belt, support piece connects in frame or extensible member, the extensible member is located the inboard of elasticity chain belt, just elasticity chain belt overcoat and slip connect in support piece, the perforating piece is provided with a plurality of and a plurality of perforating pieces and wears to establish respectively and slip and connect in the elasticity chain belt, frame or extensible member are provided with the driving piece that is used for driving the elasticity chain belt to encircle the support piece and slide.

Through adopting above-mentioned technical scheme, the elasticity chain belt passes through support piece to be installed in extensible member or frame, when needs change different perforating pieces, only need make earlier the flexible end of perforating piece relative extensible member break away from, then the annular rotation of support piece surrounding of driving piece drive elasticity chain belt for the perforating piece that needs to install is located the position of the flexible end of extensible member, then will perforate the piece and install in the flexible end of extensible member can.

Optionally, the vertical connection in the frame that slides of extensible member, the flexible end of extensible member is provided with the mechanism of changing that is used for tearing open and changing different specification perforating pieces, it includes that fixed connection is in the flexible seat of changing of extensible member and a plurality of seat of changing of being used for the cooperation tear open change handle open, the one end of changing the handle open is connected in perforating piece, the other end of changing the handle open insert establish and can dismantle in tear open change seat, the frame is provided with a plurality of control assembly that tear open that are used for the fixed handle of changing open.

Through adopting above-mentioned technical scheme, when changing the perforating piece, only need make to tear open and trade the fixed handle of changing of control assembly, then the extensible member is vertical flexible, make tear open and trade the handle and tear open and trade the seat and break away from the back mutually and remove the fixed of tearing open and trade the handle, driving piece drive elasticity chain belt annular rotates, make the perforating piece that needs to install be located the position of extensible member flexible end, it is fixed that the handle is torn open again to make through tearing open and trade the control assembly this moment, thereby it is fixed to make the perforating piece that needs to install, then the extensible member vertically slides, and make to tear open and trade the handle grafting in tearing open and trade the seat and can accomplish the tearing open and trade of perforating piece.

Optionally, tear open and trade control assembly including rotate connect or slip connect in the control seat of frame, the one end that the control seat kept away from the frame is buckled and is formed with the joint portion that is used for the joint to tear open and trade the handle, tear open and trade control assembly still including the control piece that is used for driving control seat rotation or slip.

Through adopting above-mentioned technical scheme, when the fixed handle that trades that tears open of needs, only need drive the control seat through the control and rotate for tear open and trade the handle joint in joint portion, can be fixed tear open and trade the handle open, restrict to tear open and trade the handle and follow the vertical slip of extensible member.

In summary, the present application includes at least one of the following beneficial technical effects:

when punching, the packaging bag is positioned at the position of the supporting plate under the guiding action of the guiding plate, the supporting plate is directly inserted into the bag opening of the packaging bag, manual alignment is not needed, the bag opening of the packaging bag can be opened through the supporting plate, and at the moment, the pressing plate and the guiding plate can press the edge of the upper bag opening of the packaging bag on the supporting plate, so that the possibility of deviation of the position of the opening due to bending of the bag opening of the packaging bag is reduced; at the moment, the plurality of telescopic pieces simultaneously drive the plurality of punching pieces to move towards the supporting plate and punch holes on the edges of the bag openings of the packaging bag, so that the possibility that the edges of the different bag openings of the packaging bag are overlapped after the holes are formed can be effectively reduced when the edges of the two sides of the bag openings of the packaging bag are simultaneously punched, compared with the situation that a drill bit or a needle head simultaneously penetrates through two bag openings of the packaging bag; at this moment, the backup pad can also make the buffering through elasticity buckling, reduces the damage that the perforating piece bore when bearing.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present application.

Fig. 2 is a first structural diagram of embodiment 2 of the present application.

Fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Fig. 4 is a second structural diagram of embodiment 2 of the present application.

Fig. 5 is an enlarged schematic view of the portion B in fig. 4.

Fig. 6 is a partial structural sectional view of the replacing mechanism in embodiment 2 of the present application.

Fig. 7 is an enlarged schematic view of the portion C in fig. 6.

Reference numerals illustrate: 1. a frame; 11. a first air gun; 12. a second air gun; 2. a punching mechanism; 21. a telescoping member; 22. a perforating piece; 221. a bellows; 23. controlling the driving member; 3. a support assembly; 31. a support plate; 32. pressing the plate; 321. an avoidance port; 4. a guide assembly; 41. a guide plate; 5. replacing the assembly; 51. an elastic chain belt; 511. a chain; 512. a link plate; 52. a support; 521. a support frame; 522. a support sprocket; 53. a driving member; 531. a driving motor; 532. a drive sprocket; 54. a restriction member; 541. a restriction strip; 542. limiting the sprocket; 543. a limiting spring; 6. a disassembling and replacing mechanism; 61. disassembling and replacing the seat; 62. disassembling and replacing the handle; 621. a clamping hole; 622. disassembling and replacing the annular plate; 63. disassembling and replacing the control component; 631. a control base; 632. a clamping part; 633. a control member; 634. the clamping ring groove is connected; 64. a clamping piece; 641. a clamping column; 642. a clamping spring; 643. an electromagnet.

Detailed Description

The application is described in further detail below with reference to fig. 1-7.

Example 1:

referring to fig. 1, the double-sided bag mouth perforating machine comprises a frame 1 and two groups of perforating devices for perforating, wherein the two groups of perforating devices are vertically distributed, and perforating ends of the two groups of perforating devices are opposite and vertically arranged so as to be used for perforating two long edges of a bag mouth of a packaging bag at the same time, and the efficiency of inspection is optimized. Of course, in other embodiments, two sets of punching devices may be distributed along the horizontal direction.

The punching device comprises at least one punching mechanism 2 for punching, one or more punching mechanisms 2 of the same punching device can be arranged according to the punching quantity, and specifically 1, 2, 3, 4 or more punching mechanisms 2 of the same punching device are arranged, and the two punching mechanisms 2 of the same punching device are distributed along the horizontal direction.

Referring to fig. 1, a punching mechanism 2 includes a telescopic member 21 and a punching member 22 for punching, where the telescopic member 21 may be a cylinder, an electric push cylinder, a linear motor or a hydraulic cylinder, in this embodiment, the telescopic member 21 is a cylinder, and the telescopic member 21 is fixedly mounted on the frame 1, and a telescopic end of the telescopic member 21 stretches vertically. The perforating piece 22 is fixedly connected or detachably connected to the telescopic end of the telescopic piece 21, and the perforating piece 22 is in a rod shape, a needle shape or a tube shape, so that when the telescopic end of the telescopic piece 21 drives the perforating piece 22 to vertically stretch, the edge of the bag mouth of the packaging bag can be perforated simultaneously. Of course, in other embodiments, the telescopic end of the same telescopic member 21 may be fixedly provided with a plurality of punching members 22 for synchronous punching.

In addition, in order to support the bag mouth edge of the packaging bag when punching, a supporting component 3 is arranged between punching ends of the two punching devices and is used for supporting the bag mouth edge of the packaging bag when punching.

Referring to fig. 1, the support assembly 3 includes at least one support plate 31 for engaging the mouth of the package. One or more support plates 31 may be provided, and four support plates 31 are provided in the embodiment of the present application. Four backup pad 31 divide into two sets of and two sets of backup pad 31 vertical distributions, and with the group including two backup pads 31, the one end fixed connection of backup pad 31 is in frame 1, and the one end that frame 1 was kept away from to two sets of backup pads 31 is buckled in opposite directions and is set up to when opening the sack with the wrapping bag and punching, can also be when punching, elastic support is supported to the sack of wrapping bag, reduces the possibility that causes the damage to perforating piece 22 because of the impact.

In other embodiments, the supporting component 3 may be configured as a strip or a block, and is directly and fixedly connected to the frame 1, so as to be used for supporting the mouth of the packaging bag.

Referring to fig. 1, at least one side of the upper and lower sides of the support plate 31 is provided with a pressing plate 32, the pressing plate 32 may be disposed above or below the support plate 31, or both the upper and lower sides are provided with pressing plates 32, in the embodiment of the present application, two pressing plates 32 are disposed above the support plate 31.

The pressing plate 32 is fixedly connected to the frame 1 or the telescopic member 21, in the embodiment of the application, the pressing plate 32 is fixedly connected to the frame 1, and one end of the pressing plate 32 away from the frame 1 is bent upwards, so as to reduce the possibility of damaging the packaging bag by the pressing plate 32 when the supporting plate 31 is inserted into the packaging bag. Wherein, the nip plate 32 is provided with an avoiding opening 321 for avoiding the telescopic end of the telescopic member 21, so that the area for supporting the packaging bag can be increased and the stability of the support can be optimized while the possibility that the nip plate 32 interferes with the telescopic end of the telescopic member 21 is reduced.

The frame 1 is fixedly connected with a guide assembly 4 for guiding the packaging bag, so that the opening of the packaging bag is conveniently sleeved on the plurality of support plates 31.

Referring to fig. 1, the guide assembly 4 includes at least one guide plate 41, one end of the guide plate 41 is fixedly connected to the frame 1, and the other end of the guide plate 41 extends horizontally downward away from the frame 1 and then is bent downward into an arc-shaped plate structure for guiding the mouth of the package bag. Wherein, the guide plate 41 is also formed with an avoiding opening 321 for avoiding the telescopic member 21, the guide plate 41 is positioned below the supporting plate 31, and the guide plate 41 is positioned above the telescopic end of the telescopic member 21 on the lower punching device, so that the edge of the lower bag opening of the packaging bag is pressed on the supporting plate 31 positioned below through the guide plate 41.

In order to reduce the possibility that scraps generated by hole forming of the packaging bag after punching are accumulated in the frame 1, the supporting plate 31 and the guide plate 41, at least one first air gun 11 is fixedly connected to the frame 1, and an air outlet of the first air gun 11 is arranged towards the supporting plate 31, so that scraps generated by hole forming can be blown off after punching is finished, and the subsequent interference to production is reduced.

Meanwhile, in order to facilitate cleaning of scraps at other positions, the frame 1 is further provided with a second air gun 12, the second air gun 12 is communicated with an air source through a pipeline, and an air outlet end of the second air gun 12 is freely arranged, so that the scraps at the positions of the frame 1, the supporting component 3, the guiding component 4 and the like can be cleaned conveniently.

The implementation principle of the embodiment 1 is as follows: when the packing bag is used, the supporting plate 31 is directly inserted into the bag opening of the packing bag under the action of the guide plate 41, manual alignment is not needed, the bag opening of the packing bag is opened through the supporting plate 31, and at the moment, the pressing plate 32 and the guide plate 41 can press the edge of the upper bag opening of the packing bag onto the supporting plate 31, so that the possibility of deviation of the position of an opening due to bending of the bag opening of the packing bag is reduced. At this time, the plurality of telescopic members 21 simultaneously drive the plurality of perforating members 22 to move towards the supporting plate 31 and perforate the edges of the bag openings of the packaging bag, so that the possibility that the edges of different bag openings of the packaging bag are overlapped after perforation can be effectively reduced when the edges of the two sides of the bag openings of the packaging bag are simultaneously perforated compared with the possibility that the edges of the two bag openings of the packaging bag are simultaneously perforated by a drill bit or a needle; at this time, the supporting plate 31 can also be elastically bent to buffer, so as to reduce damage to the punching member 22 when punching.

Example 2:

referring to fig. 2 and 3, this embodiment is different from embodiment 1 in that each of the telescopic members 21 is provided with a replacing mechanism for replacing the perforated member 22 of different specifications in a one-to-one correspondence manner, so that the perforated member 22 can be replaced relatively conveniently when the packaging bag of different specifications is perforated, the aperture of the mounting hole required by the packaging bag of different specifications is adapted, and thus, the simultaneous adaptive relatively convenient simultaneous bilateral perforation for different packaging bags can be achieved, and the influence of simultaneous perforation on the edge quality of the mounting hole can be reduced.

The replacement mechanism includes a replacement assembly 5, and the replacement assembly 5 includes an elastic chain belt 51 in a ring shape and a support 52 for supporting the elastic chain belt 51. The annular plane of the elastic chain belt 51 is vertically arranged, and the telescopic member 21 is arranged at the inner side of the corresponding elastic chain belt 51. The supporting member 52 is fixedly connected to the frame 1 or the casing of the telescopic member 21, the elastic chain belt 51 is sleeved and slidingly connected to the supporting member 52, so that the elastic chain belt 51 can rotate around the supporting member 52, and the chain belt of the elastic chain belt 51 facing to the end of the supporting component 3 is located on the telescopic path of the telescopic end of the telescopic member 21.

Referring to fig. 2 and 3, the perforating pieces 22 are provided in plurality, and the plurality of perforating pieces 22 are connected to the elastic chain belt 51 around the center of the elastic chain belt 51. The punch 22 is inserted into the elastic chain belt 51 in the radial direction of the elastic chain belt 51, and the punch 22 is slidably connected to the elastic chain belt 51 in the radial direction of the elastic chain belt 51. Wherein the frame 1 or the telescopic member 21 is provided with a driving member 53 for driving the elastic chain belt 51 to slide circumferentially around the supporting member 52.

When the perforating pieces 22 with different specifications are required to be replaced, the perforating pieces 22 which are required to be replaced are separated from the telescopic ends of the telescopic pieces 21, then the driving piece 53 drives the elastic chain belt 51 to rotate around the supporting piece 52, so that the perforating pieces 22 with other specifications correspond to the positions of the telescopic ends of the telescopic pieces 21 which are required to be replaced, then the perforating pieces 22 are arranged at the telescopic ends of the corresponding telescopic pieces 21 to complete replacement, and the whole replacement process only needs to manually install the perforating pieces 22 without additionally searching the required perforating pieces 22 so as to optimize convenience in use; the possibility that the telescopic piece 21 drives the punching piece 22 to stretch and punch and the elastic chain belt 51 to interfere can be reduced by the punching piece 22 penetrating and being connected to the elastic chain belt 51 in a sliding mode.

In other embodiments, the replacing mechanism may also include a cutter disc rotatably disposed on the frame and a cutter disc rotatably disposed on the frame, wherein a plurality of first buckles are disposed on edges of the cutter disc for respectively clamping and clamping the plurality of punching members 22, and a second buckle is disposed on an edge of one side of each of two opposite ends of the cutter disc for clamping the punching members 22, wherein the cutter disc and the cutter disc are driven by a motor, and the telescopic members 21 are vertically slidably disposed on the frame 1. When the cutter head is used, the cutter head is driven by the motor to rotate, the perforating piece 22 to be installed is located on the rotating path of the end part of the cutter replacement plate, then the cutter replacement plate is rotated, the perforating piece 22 at the telescopic end of the telescopic piece 21 and the perforating piece 22 to be installed are clamped at the two ends of the cutter replacement plate respectively, then the telescopic piece 21 vertically slides, the perforating piece 22 is separated from the telescopic piece 21, the cutter replacement plate is rotated, the perforating piece 22 to be installed and the perforating piece 22 to be detached are replaced, and then the telescopic piece 21 moves downwards and is fixedly installed to the telescopic piece 21, so that the replacement of the perforating piece 22 can be completed.

Referring to fig. 2 and 3, the elastic chain belt 51 includes two chains 511 and a plurality of link plates 512, and the two chains 511 are disposed parallel to each other and with a central axis. The plurality of link plates 512 are disposed around the center of the chain 511 and are circumferentially distributed. The chain 511 is sleeved and slidingly connected to the supporting piece 52, two side edges of the chain plate 512 along the length direction are respectively connected to the two chains 511 in a rotating mode, and two parts of the same side edge of the chain plate 512 are respectively connected to different parts of the chains 511 in a rotating mode, so that the stability of the chain plate 512 can be kept while the chain plate 512 is simultaneously connected to the two chains 511.

The plurality of punching pieces 22 are respectively corresponding to one another and penetrate through the chain plate 512, the punching pieces 22 are sleeved with elastic corrugated pipes 221, and two ends of each elastic corrugated pipe 221 are respectively fixedly connected to the outer wall of each punching piece 22 and the chain plate 512, so that the punching pieces 22 can penetrate through and slide to be connected to the chain plate 512. In other embodiments, the plurality of link plates 512 may be replaced by elastic ring plates, and two side edges of the elastic ring plates are fixedly connected to the two chains 511, respectively.

Referring to fig. 2 and 3, the support 52 includes a support frame 521 and a plurality of support sprockets 522 rotatably coupled to the support frame 521, the plurality of support sprockets 522 are divided into two groups, and the support sprockets 522 of the two groups are engaged with the two chains 511, respectively, for supporting the elastic chain belt 51. The support frame 521 is fixedly connected to the frame 1 or the fixing portion of the telescopic member 21, so that the two chains 511 can be supported, and the chains 511 can also rotate around the support frame 521 in a circumferential direction, and specifically, the support frame 521 includes a frame or a plurality of struts fixedly connected to the fixing portion of the telescopic member 21.

In other embodiments, the support sprocket 522 may be replaced with two C-shaped sliding rails, and the two chains 511 may be engaged with and slidingly connected to the sliding rails.

In addition, in order to reduce the disengagement of the chain 511 with respect to the plurality of support sprockets 522, the support frame 521 is provided with at least two stoppers 54 to respectively restrict the two chains 511.

Referring to fig. 2 and 3, the limiter 54 includes a limiter bar 541 slidably coupled to the support frame 521, a limiter sprocket 542 rotatably coupled to the limiter bar 541, and a limiter spring 543. One end of the restriction bar 541 is slidably connected to the support frame 521, the other end of the restriction bar 541 is located on a side of the chain 511 away from the center, and the restriction sprocket 542 is rotatably connected to the restriction bar 541 on a side of the chain 511 away from the center. The restriction sprocket 542 is engaged with the chain 511. Meanwhile, both ends of the limiting spring 543 are fixedly connected to the limiting bar 541 and the supporting frame 521, respectively, so that the limiting bar 541 is pulled toward the center side of the chain 511, thereby limiting the disengagement of the chain 511 from the plurality of supporting sprockets 522 and maintaining the chain 511 in a relatively tight state.

Referring to fig. 2 and 3, the driving member 53 includes a driving motor 531 and two driving sprockets 532, the driving sprockets 532 are fixedly coupled to an output shaft of the driving motor 531, and the two driving sprockets 532 are respectively engaged with the inner sides of the two chains 511 in one-to-one correspondence. The driving motor 531 is fixedly connected to the supporting frame 521, and the driving sprocket 532 is rotatably connected to the supporting frame 521, so as to drive the two chains 511 to rotate in a circumferential direction.

In other embodiments, the driving member 53 may be further configured as two driving motors 531 for driving the two driving sprockets 532 to rotate respectively, so as to reduce the possibility of interference between the punch 22 and the output shaft of the driving motor 531.

Referring to fig. 4 and 5, in order to replace the punch 22 relatively more conveniently and more conveniently, the use efficiency is optimized, the supporting frame 521 is fixedly connected to the fixing portion of the telescopic member 212, the telescopic member 21 is vertically slidably connected to the frame 1 through the guide rail, and the dismounting mechanism 6 for dismounting different punches 22 is arranged at the telescopic end of the telescopic member 21. Wherein, the frame 1 is provided with a control driving piece 23 for driving the telescopic piece 21 to slide vertically, and the control driving piece 23 can be a cylinder, a hydraulic cylinder or an electric pushing cylinder, preferably an electric pushing cylinder or a hydraulic cylinder.

The dismounting mechanism 6 comprises a dismounting seat 61 fixedly connected to the telescopic end of the telescopic member 21 and a plurality of dismounting handles 62 matched with the dismounting seat 61, the dismounting handles 62 are inserted and detachably connected to the dismounting seat 61, the dismounting seat 61 and the dismounting handles 62 are distributed along the telescopic direction of the telescopic member 21, and the punched members 22 with different specifications are fixedly connected to the different dismounting handles 62 in a one-to-one correspondence mode respectively. Wherein the frame 1 is further provided with a dismounting control assembly 63 for fixing the dismounting handle 62.

Referring to fig. 6 and 7, specifically, a clamping member 64 for clamping the replacing handle 62 is provided in the replacing seat 61. The disassembling and replacing seat 61 is provided with a vertically arranged inserting hole, the disassembling and replacing handle 62 is inserted into the inserting hole, the side part of the disassembling and replacing handle 62 is provided with a clamping hole 621, and the inner wall of the clamping hole 621 is of a frustum-shaped structure and is the inner wall of which the large end faces the inserting hole. The portion of the disassembly and replacement handle 62 inserted into the insertion hole is in a polygonal prism structure, and the inner wall of the insertion hole is adapted to the insertion portion of the disassembly and replacement handle 62.

The clamping piece 64 comprises a clamping post 641, a clamping spring 642 and an electromagnet 643 which are matched with the clamping hole 621, the clamping post 641 is inserted along the radial direction of the plugging hole and is connected with the wall of the plugging hole in a sliding manner, the end part of the clamping post 641 is of a frustum-shaped structure, and specifically, the hole depth of the clamping hole 621 is larger than the length of the frustum part of the clamping post 641, so that the clamping post 641 can be relatively tightly combined when being inserted into the clamping hole 621, and the possibility of loosening the disassembly and replacement handle 62 is reduced.

Referring to fig. 6 and 7, the clamping spring 642 is located at a side of the clamping post 641 away from the center of the insertion hole, and two ends of the clamping spring 642 are respectively connected to the clamping post 641 and the replacing handle 62 for driving the clamping post 641 to be inserted into the insertion hole 621. Wherein, the clamping post 641 and the clamping spring 642 are made of magnetic materials, so that the electromagnet 643 can attract the clamping post 641 and the clamping spring 642 to shrink and separate from the clamping hole 621.

When the perforating pieces 22 with different specifications need to be replaced, the electromagnet 643 only needs to attract the clamping post 641 to shrink and press the clamping spring 642 to shrink, and then the disassembling and replacing handle 62 is separated from the disassembling and replacing seat 61 through the vertical sliding of the disassembling and replacing control assembly 63 and the telescopic piece 21; at this time, the driving element 53 drives the elastic chain belt 51 to rotate, so that the punching element 22 to be installed is located at a position corresponding to the telescopic end of the telescopic element 21, then the telescopic element 21 slides vertically again, so that the disassembling and replacing handle 62 is inserted into the inserting hole of the disassembling and replacing seat 61, at this time, the control electromagnet 643 releases the restriction on the clamping post 641, then the clamping post 641 is inserted into the clamping hole 621 of the disassembling and replacing handle 62 under the action of the clamping spring 642, at this time, the disassembling and replacing control assembly 63 releases the restriction on the punching element 22, and the disassembling and replacing of the punching element 22 can be completed.

Referring to fig. 4 and 5, the dismounting control assembly 63 includes a control seat 631 rotatably or slidably connected to the frame 1 and a control member 633 for driving the control seat 631 to rotate or slidably move, in this embodiment of the present application, the control seat 631 is slidably connected to the frame 1 along a horizontal direction, one end of the control seat 631 away from the frame 1 is bent and formed with a clamping portion 632 for clamping the dismounting handle 62, and the punching member 22 mounted at the telescopic end of the telescopic member 21 is located on a sliding path of the clamping portion 632, and the control member 633 is mounted on the frame 1. Wherein, control 633 may employ a linear motor, cylinder, or hydraulic cylinder.

When the perforating piece 22 needs to be detached, only the control piece 633 is required to drive the control seat 631 to slide, so that the clamping part 632 clamps the detaching and replacing handle 62 at the end part of the telescopic piece 21, and the possibility that the perforating piece 22 cannot be detached due to the swing of the elastic chain belt 51 and the like in the detaching and replacing process is reduced; then the telescopic piece 21 slides vertically, so that after the disassembling and replacing handle 62 and the disassembling and replacing seat 61 are separated, the control seat 631 resets; at this time, after the elastic chain belt 51 rotates, the control seat 631 slides to clamp and support the replacing handle 62 on the hole punching element 22 to be installed, and then the telescopic element 21 vertically slides integrally, so that the replacing handle 62 is inserted and fastened in the replacing seat 61 through the clamping element 64, and finally the control seat 631 resets to complete the replacing of the hole punching element 22.

In other embodiments, the control seat 631 is rotatably connected to the frame 1, and the driving member 633 drives the control seat 631 to rotate, so that the locking portion 632 can be locked to the replacing handle 62.

Referring to fig. 4 and 5, the dismounting handle 62 is fixedly connected with a dismounting ring plate 622, the clamping portion 632 is bent towards one side of the corresponding punching piece 22 towards the tangential direction of the rotation path, an arc-shaped clamping port is formed, a clamping ring groove 634 for being matched with the dismounting ring plate 622 is formed in the inner side edge of the clamping port, an opening of the clamping ring groove 634 is horizontally arranged for clamping the dismounting handle 62 after the dismounting ring plate 622 is clamped in the clamping ring groove 634, and therefore vertical support of the dismounting handle 62 is achieved.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (6)

1. The utility model provides a bilateral sack puncher, includes frame (1), its characterized in that: the punching machine comprises a frame (1), wherein two groups of punching devices are arranged on the frame (1), the two groups of punching devices are respectively distributed along the vertical direction or the horizontal direction, each punching device comprises at least one punching mechanism (2) for punching, each punching mechanism (2) comprises a telescopic piece (21) and a punching piece (22) for punching, the telescopic ends of the telescopic pieces (21) of the two punching devices are oppositely arranged, each punching piece (22) is arranged at the telescopic end of each telescopic piece (21), and a supporting assembly (3) for supporting the edge of a bag opening of a packaging bag during punching is arranged between the two punching devices; the telescopic piece (21) is provided with a replacing mechanism for replacing perforating pieces (22) with different specifications; the replacing mechanism comprises a replacing assembly (5), the replacing assembly (5) comprises an annular elastic chain belt (51) and a supporting piece (52) for supporting the elastic chain belt (51), the supporting piece (52) is connected to a frame (1) or a telescopic piece (21), the telescopic piece (21) is located on the inner side of the elastic chain belt (51), the elastic chain belt (51) is sleeved outside and slidingly connected to the supporting piece (52), a plurality of perforating pieces (22) are arranged, the perforating pieces (22) penetrate through the elastic chain belt (51) respectively and slidingly connected to the elastic chain belt (51), and a driving piece (53) for driving the elastic chain belt (51) to slidingly encircle the supporting piece (52) is arranged on the frame (1) or the telescopic piece (21); the telescopic part (21) is vertically connected to the frame (1) in a sliding manner, the telescopic end of the telescopic part (21) is provided with a disassembling and replacing mechanism (6) for disassembling and replacing perforating parts (22) with different specifications, the disassembling and replacing mechanism (6) comprises a disassembling and replacing seat (61) fixedly connected to the telescopic end of the telescopic part (21) and a plurality of disassembling and replacing handles (62) matched with the disassembling and replacing seat (61), one end of each disassembling and replacing handle (62) is connected to the perforating part (22), the other end of each disassembling and replacing handle (62) is inserted into and can be detached from the disassembling and replacing seat (61), and the frame (1) is provided with a plurality of disassembling and replacing control assemblies (63) used for fixedly disassembling and replacing the handles (62); the disassembly and replacement control assembly (63) comprises a control seat (631) which is rotationally connected or glidingly connected to the frame (1), one end, far away from the frame (1), of the control seat (631) is bent and is formed with a clamping part (632) for clamping the disassembly and replacement handle (62), and the disassembly and replacement control assembly (63) further comprises a control piece (633) for driving the control seat (631) to rotate or glide.

2. The dual sided pocket punch as defined in claim 1, wherein: the perforating piece (22) is needle-shaped or tubular.

3. The dual sided pocket punch as defined in claim 1, wherein: the support assembly (3) comprises at least one support plate (31) for being matched with the bag opening of the packaging bag, the support plate (31) is arranged on the fixing part of the frame (1) or the telescopic piece (21), and the support part of the support plate (31) is arranged between the two punching devices in a penetrating mode.

4. A double sided mouth punch according to claim 3 wherein: at least one side of the upper part and the lower part of the supporting plate (31) is provided with a pressing plate (32) for pressing the bag mouth of the packaging bag on the supporting plate (31), and the pressing plate (32) is connected to the fixing part of the frame (1) or the telescopic piece (21).

5. The dual sided pocket punch as defined in claim 4, wherein: an avoidance opening (321) for avoiding the telescopic end of the telescopic piece (21) is formed in the side part of the pressing plate (32).

6. The dual sided pocket punch as defined in claim 1, wherein: the packaging bag machine is characterized in that the machine frame (1) is provided with a guide assembly (4) for guiding the packaging bag, the guide assembly (4) comprises at least one guide plate (41), and the guide plate (41) is arranged on the machine frame (1).